HD6417712BPV Renesas Electronics America, HD6417712BPV Datasheet - Page 426
![MPU 1.5/3.3V 0K PB-FREE 256-BGA](/photos/28/61/286175/256-lfbga_sml.jpg)
HD6417712BPV
Manufacturer Part Number
HD6417712BPV
Description
MPU 1.5/3.3V 0K PB-FREE 256-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH Ethernetr
Datasheet
1.HD6417712BPV.pdf
(980 pages)
Specifications of HD6417712BPV
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
200MHz
Connectivity
EBI/EMI, Ethernet, FIFO, SCI, SIO
Peripherals
DMA, POR, WDT
Number Of I /o
24
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417712BPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 426 of 980
- Download datasheet (6Mb)
Section 12 Bus State Controller (BSC)
12.4.6
RTCNT is an 8-bit counter that increments using the clock selected by bits CKS2 to CKS0 in
RTCSR. When RTCNT matches RTCOR, RTCNT is cleared to 0. The value in RTCNT returns to
0 after counting up to 255. When the RTCNT is written, the upper 16 bits of the write data must
be H’A55A to cancel write protection.
Rev. 1.00 Dec. 27, 2005 Page 382 of 932
REJ09B0269-0100
2
1
0
Bit
31 to 8
7 to 0
Bit
Bit Name
Bit Name
RRC2
RRC1
RRC0
Refresh Timer Counter (RTCNT)
Initial
Value
0
0
0
Initial
Value
All 0
All 0
R/W
R/W
R/W
R/W
R/W
R
R/W
Description
Refresh Count
Specify the number of continuous refresh cycles, when the
refresh request occurs after the coincidence of the values
of the refresh timer counter (RTCNT) and the refresh time
constant register (RTCOR). These bits can make the
period of occurrence of refresh long.
000: Once
001: Twice
010: 4 times
011: 6 times
100: 8 times
101: Reserved (setting prohibited)
110: Reserved (setting prohibited)
111: Reserved (setting prohibited)
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
8-bit Counter
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